Construction and other equipment - 615 (similar to D15 SII) final drive noise?

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615 (similar to D15 SII) final drive noise?

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=156011
Printed Date: 28 Apr 2024 at 12:14pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 615 (similar to D15 SII) final drive noise?

Posted By: Dean (West MI)
Subject: 615 (similar to D15 SII) final drive noise?
Date Posted: 29 Nov 2018 at 7:03pm

I have a 615 that has always had calcium chloride in the rear tires. There is a loud growling noise coming from the left rear axle. Right now, my best guess it is coming from the final drive. While I understand final drives can be noisy, the left side is noticeably louder than the right side. If I remember correctly, the noise was louder in 1st gear wide open than 4th gear wide open.

Sorry, I am not giving everyone much to go on, but any idea what the noise may be? I'll be tearing into it in a few weeks, and am looking for any suggestions to check.

Also, before the wheel weights and calcium goes back on/in, what else should I service. Do the wheel bearings go bad?

Replies:

Posted By: JohnCO
Date Posted: 29 Nov 2018 at 10:58pm

I would guess it's a wheel bearing or differential support bearing. Always check the gears for wear, bearings and pinion shafts. Flush out the housing (if gunky) and put in new oil. Hopefully, others will have better advice.

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"If at first you don't succeed, get a bigger hammer"
Allis Express participant

Posted By: orangeman
Date Posted: 16 Dec 2018 at 9:33am

Dean- In the early 70's AC released a service bulletin on the rear final drive bearings on the 615 units.

PM me if you need a copy.

Orangeman